olaparib

Olaparib (KU0059436) 是 PARP1 PARP2 的小分子抑制剂 (IC50=5 1 nM)，对 PARP tankyrase-1 的抑制活性较弱 (IC50=1.5 μM)，具有选择性和口服活性。Olaparib 具有自噬和线粒体自噬激活活性。

N-Descyclopropanecarbaldehyde Olaparib, an Olaparib analogue, incorporates a DOTA moiety. It acts as a CRBN-based ligand for the formation of novel dual EGFR and PARP PROTAC, DP-C-4[1]. N-Descyclopropanecarbaldehyde Olaparib is suitable for radiolabeling with F-18 or a fluorophore to visualize tumors using positron emission tomography (PET) or optical imaging[2].

Olaparib D5 is a deuterium labeled Olaparib. Olaparib is a potent and oral inhibitor of PARP.

PARPi-FL (PARPiFL) 是一种用于胶质母细胞瘤成像的荧光 PARP1 抑制剂，可用于检测口腔癌。

AB25583是一种小分子Polθ 解旋酶 (Polθ-hel) 抑制剂，具有6 nM 的IC50值。该化合物能选择性地消灭BRCA1 2缺陷细胞，且能与Olaparib在携带BRCA1 2致病性突变的癌症细胞中发挥协同效应。AB25583主要应用于肿瘤相关的研究领域。

And1 degrader 1（Compound A15）作为酸性核质DNA结合蛋白1（And1）的特定降解剂，在NSCLC细胞中有效触发And1的降解。在5 μM浓度下，该化合物与Olaparib（1 μM）合用，显著抑制了A549及H460细胞系的增殖。此外，And1 degrader 1主要用于癌症研究领域。

USP1-IN-11 (compound 38-P2) 是一种选择性、可逆和非竞争性的USP1(Ubiquitin-specific protease1)抑制剂。它通过激活DDR (DNA damage repair) 通路来诱导细胞周期停滞与细胞凋亡 (Apoptosis)，从而抑制细胞存活。USP1-IN-11 可提高Olaparib耐药细胞的敏感性，且在BRCA功能正常的癌细胞中与Andrographolide具有协同作用。在MDA-MB-436异种移植模型中，该化合物展示出显著的剂量依赖性抗肿瘤效果。

USP1-IN-11 (compound 38-P2) 是一种靶向USP1 (Ubiquitin-specific protease1) 的抑制剂，具有选择性、可逆性和非竞争性特征。通过激活DDR (DNA damage repair) 通路，这种化合物可引发细胞周期阻滞和细胞凋亡 (Apoptosis)，从而抑制细胞存活。USP1-IN-11 能增强对Olaparib耐药细胞的敏感性，并且在BRCA功能正常的癌细胞中与Andrographolide显示出协同作用。在MDA-MB-436异种移植模型中，USP1-IN-11 表现出显著的剂量依赖性抗肿瘤效果。

CAY10760 is an inhibitor of the protein-protein interaction between RAD51 recombinase and BRCA2 (EC50= 19 μM in a cell-free competitive ELISA).1It decreases homologous recombination by 54% in wild-typeBRCA2-expressing BxPC-3 pancreatic cancer cells when used at a concentration of 20 μM. CAY10760 (20 μM) decreases proliferation of BxPC-3, as well as mutantBRCA2-expressing Capan-1, cancer cells when used alone or in combination with the poly(ADP-ribose) polymerase (PARP) inhibitor olaparib . 1.Bagnolini, G., Milano, D., Manerba, M., et al.Synthetic lethality in pancreatic cancer: Discovery of a new RAD51-BRCA2 small molecule disruptor that inhibits homologous recombination and synergizes with olaparibJ. Med. Chem.63(5)2588-2619(2020)

PARP1-IN-9 (Compound 5c) is a potent PARP1 inhibitor, displaying an IC 50 of 30.51 nM. With its ability to induce cell apoptosis and exhibit anticancer activity, PARP1-IN-9 surpasses Olaparib in terms of efficacy [1].

Simmiparib (SMOCL-9112) 是一种新型有效的 PARP1 和 PARP2 抑制剂，是一种Olaparib 衍生物。Simmiparib 在同源重组修复 (HR) 缺陷细胞中诱导 DNA 双链断裂 (DSB) 和 细胞周期阻滞，从而促使细胞凋亡 (apoptosis)。Simmiparib 可用于研究帕金森病、阿尔茨海默病、乳腺癌和黑色素瘤。

MI-223 is an inhibitor of Mcl-1-stimulated homologous recombination (HR) DNA repair, which leads to sensitization of cancer cells to hydroxyurea- or olaparib-induced DNA replication stress.

MFH290 is a novel cysteine (Cys)-directed covalent inhibitor of CDK12 13. MFH290 forms a covalent bond with Cys-1039 of CDK12, exhibits excellent kinome selectivity, inhibits the phosphorylation of serine-2 in the C-terminal domain (CTD) of RNA-polymerase II (Pol II), and reduces the expression of key DNA damage repair genes. Importantly, these effects were demonstrated to be CDK12-dependent as mutation of Cys-1039 rendered the kinase refractory to MFH290 and restored Pol II CTD phosphorylation and DNA damage repair gene expression. Consistent with its effect on DNA damage repair gene expression, MFH290 augments the antiproliferative effect of the PARP inhibitor olaparib.

YCH1899为一种口服活性PARP抑制剂，其对PARP1 2的IC50均低于0.001 nM。该化合物对Olaparib和Talazoparib耐药的Capan-1细胞株(Capan-1 OP及Capan-1 TP细胞)表现出显著抗增殖能力，IC50分别为0.89 nM和1.13 nM。在大鼠体内，YCH1899展现优良的药代动力学属性。

BRC4wt是一种从人类BRCA2的BRC4重复区(1521-1536)衍生而来的乙酰化肽，并且是BRCA2与RAD51之间的蛋白质-蛋白质相互作用的抑制剂。当与阳离子穿膜肽(Arg)9结合时，BRC4wt缩短了体外DNA复制轨迹长度，并降低了由DNA拓扑异构酶I抑制剂坎普特西汀引起的DNA损伤的同源修复频率，同时也增强了聚(ADP-核糖)聚合酶(PARP)抑制剂奥拉帕尼在HeLa人类宫颈癌细胞和U2OS人类骨肉瘤细胞中诱导的细胞死亡，但在非癌症细胞hTERT RPE-1、MRC-5或MCF-10A中则不然。

SIC-19 是一款针对SIK2的抑制剂，它通过泛素化途径加速SIK2蛋白的降解。此化合物能有效抑制癌细胞的生长，并增强细胞、卵巢癌类器官以及异种移植模型对PARP抑制剂（例如Olaparib）的敏感性。